ETCR3300 Large-Scale Grounding Grid Earth Resistance Tester - ETCR

ETCR3300 Large-Scale Grounding Grid Earth Resistance Tester

Product Characteristics

1. Measure grounding impedance or resistance of grounding device

2. Measure the conducting impedance or resistance between grounding devices

3. Range:0Ω~200Ω

4. Measure soil resistivity

     ETCR3300 Large-Scale Grounding Grid Earth Resistance Tester is a multi-purpose model to test the power frequency grounding impedance, ground resistance and soil resistivity of large earth grid such as substation earth grid, water and fire power plant, microwave station andcommunication base station.

    ETCR3300 Large-Scale Grounding Grid Earth Resistance Tester adopts super automatic frequency conversion anti-interference technology, and with high power output of 400V and 5A, which can accurately measure the data from 50Hz power frequency in a strong interference environment.It is suitable for testing the power-frequency grounding impedance, grounding resistance, auxiliary machine and other power-frequency characteristic parameters of various grounding devices, measuring the conducting impedance or resistance between groundingdevices, and measuring soil resistivity.

       The Tester is manufactured in accordance with "jjg984-2004 resistance tester for grounding conduction verification regulation", "DL/ t475-2006 guide for measuring characteristic parameters of grounding device", and "DL/ t845.2-2004 general technical conditions of resistance measuring device part ii: power frequency grounding resistance tester"

Performance Feature:

1. Large LCD display clear and easier to operate.

2. The storage uses the keyboard input, convenient inquiry.

3. Use the external power mode can be extended to large current measurement

4. Adopt advanced automatic double frequency conversion technology, use 45Hz and 55Hz two frequencies for measurement, and there are several groups of frequency conversion for selection at the same time.

5. Strong anti-interference ability.Using automatic frequency conversion method to measurement, match with modern software and hardware filtering technology, which make the instrument has high anti-interference performance and the test data is stable and reliable.

6. High precision.Only 0.005 Ω basic error, can be used to measure small grounding impedance of the large-scale grounding grid.

7. Equip with RS232 computer interface.

Function

Measure grounding impedance or resistance of grounding device; Measure the conducting impedance or resistance between grounding devices

Impedance Measurement Range

0Ω~200Ω

Resolution

0.001Ω

Measurement Error

±(indication value×2%+0.005Ω)

Anti-Power Frequency 50HZ 

10V

Test Current Wave

Sine Wave

Test Current Frequency

Auto 45Hz/55Hz double frequency, multiple frequency conversion groups are available for optional use

Maximum Current Output

5A

Maximum Voltage Output

400V

Test Wires Demand

Current wires copper core cross-sectional area≥2.0mm2;

Voltage wires copper core cross-sectional area≥1.5mm2

Power Supply

AC220V±10%,50Hz

Size

440mm(L)×350mm(W)×210mm(H)

Weight

10KG

Data Storage

100 sets

Computer Interface

RS232

Working Temperature and Humidity

-10℃~40℃;80%rh below

Storage Temperature and Humidity

-20℃~60℃;70%rh below

Insulation Resistance

Above 20MΩ (between the circuit and shell 500V)

Withstand Voltage

AC 3700V/rms(between the circuit and shell)

Accessories Qantity
Host 1PCS
Test Wire 4PCS
Grounding cable 1PCS
Power Line 1PCS
Ground Rod 2PCS
Tool Bag 1PCS
Print Paper 1ROLL
Manual/Certificate 1SET


ETCR3300 Catalog